Merge branch 'development' into feature/0x.js/lowercase-addresses

12 files changed, 3 insertions, 4290 deletions

diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index b125697ae..0a3a6fc84 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -9,10 +9,10 @@
     },
     "scripts": {
         "build:watch": "tsc -w",
-        "prebuild": "run-s clean copy_artifacts generate_contract_wrappers",
+        "prebuild": "run-s clean compile copy_artifacts generate_contract_wrappers",
         "copy_artifacts": "copyfiles './src/artifacts/**/*' ./lib",
         "build": "tsc",
-        "test": "run-s compile build run_mocha",
+        "test": "run-s build run_mocha",
         "run_mocha": "mocha 'lib/test/**/*.js' --timeout 10000 --bail --exit",
         "compile:comment": "Yarn workspaces do not link binaries correctly so we need to reference them directly https://github.com/yarnpkg/yarn/issues/3846",
         "compile": "node ../deployer/lib/src/cli.js compile --contracts ${npm_package_config_contracts} --contracts-dir src/contracts --artifacts-dir src/artifacts",
@@ -38,7 +38,6 @@
     "devDependencies": {
         "@0xproject/dev-utils": "^0.1.0",
         "@0xproject/tslint-config": "^0.4.9",
-        "@0xproject/types": "^0.2.3",
         "@types/bluebird": "^3.5.3",
         "@types/lodash": "^4.14.86",
         "@types/node": "^8.0.53",
@@ -66,6 +65,7 @@
         "0x.js": "^0.32.4",
         "@0xproject/deployer": "^0.1.0",
         "@0xproject/json-schemas": "^0.7.12",
+        "@0xproject/types": "^0.2.3",
         "@0xproject/utils": "^0.3.4",
         "@0xproject/web3-wrapper": "^0.1.14",
         "bluebird": "^3.5.0",
diff --git a/packages/contracts/src/artifacts/DummyToken.json b/packages/contracts/src/artifacts/DummyToken.json
deleted file mode 100644
index aee8c794f..000000000
--- a/packages/contracts/src/artifacts/DummyToken.json
+++ /dev/null
@@ -1,313 +0,0 @@
-{
-    "contract_name": "DummyToken",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.18",
-            "keccak256": "0x457cd1abe6333f2131eb9663c76a52857bc3e37606b3997b8c6683267b2049e3",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "name",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "string"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_spender",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "approve",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "totalSupply",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_from",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transferFrom",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "decimals",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_owner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "balanceOf",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "owner",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "symbol",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "string"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "mint",
-                    "outputs": [],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transfer",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_owner",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_spender",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "allowance",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_target",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "setBalance",
-                    "outputs": [],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "newOwner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "transferOwnership",
-                    "outputs": [],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "inputs": [
-                        {
-                            "name": "_name",
-                            "type": "string"
-                        },
-                        {
-                            "name": "_symbol",
-                            "type": "string"
-                        },
-                        {
-                            "name": "_decimals",
-                            "type": "uint256"
-                        },
-                        {
-                            "name": "_totalSupply",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "constructor"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "_from",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Transfer",
-                    "type": "event"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "_owner",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "_spender",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Approval",
-                    "type": "event"
-                }
-            ],
-            "unlinked_binary":
-                "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-            "updated_at": 1518645860123
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/Exchange.json b/packages/contracts/src/artifacts/Exchange.json
deleted file mode 100644
index 724793583..000000000
--- a/packages/contracts/src/artifacts/Exchange.json
+++ /dev/null
@@ -1,603 +0,0 @@
-{
-    "contract_name": "Exchange",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.14",
-            "keccak256": "0x50d9d5de7ea3f16b7e655c3ed280d1d7ff50422b4fc42ae609422eab5028d2ca",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "numerator",
-                            "type": "uint256"
-                        },
-                        {
-                            "name": "denominator",
-                            "type": "uint256"
-                        },
-                        {
-                            "name": "target",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "isRoundingError",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "bytes32"
-                        }
-                    ],
-                    "name": "filled",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "bytes32"
-                        }
-                    ],
-                    "name": "cancelled",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "orderAddresses",
-                            "type": "address[5][]"
-                        },
-                        {
-                            "name": "orderValues",
-                            "type": "uint256[6][]"
-                        },
-                        {
-                            "name": "fillTakerTokenAmount",
-                            "type": "uint256"
-                        },
-                        {
-                            "name": "shouldThrowOnInsufficientBalanceOrAllowance",
-                            "type": "bool"
-                        },
-                        {
-                            "name": "v",
-                            "type": "uint8[]"
-                        },
-                        {
-                            "name": "r",
-                            "type": "bytes32[]"
-                        },
-                        {
-                            "name": "s",
-                            "type": "bytes32[]"
-                        }
-                    ],
-                    "name": "fillOrdersUpTo",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "orderAddresses",
-                            "type": "address[5]"
-                        },
-                        {
-                            "name": "orderValues",
-                            "type": "uint256[6]"
-                        },
-                        {
-                            "name": "cancelTakerTokenAmount",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "cancelOrder",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "ZRX_TOKEN_CONTRACT",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "orderAddresses",
-                            "type": "address[5][]"
-                        },
-                        {
-                            "name": "orderValues",
-                            "type": "uint256[6][]"
-                        },
-                        {
-                            "name": "fillTakerTokenAmounts",
-                            "type": "uint256[]"
-                        },
-                        {
-                            "name": "v",
-                            "type": "uint8[]"
-                        },
-                        {
-                            "name": "r",
-                            "type": "bytes32[]"
-                        },
-                        {
-                            "name": "s",
-                            "type": "bytes32[]"
-                        }
-                    ],
-                    "name": "batchFillOrKillOrders",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "orderAddresses",
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-            "updated_at": 1518645850257
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/MaliciousToken.json b/packages/contracts/src/artifacts/MaliciousToken.json
deleted file mode 100644
index e32c9d20b..000000000
--- a/packages/contracts/src/artifacts/MaliciousToken.json
+++ /dev/null
@@ -1,188 +0,0 @@
-{
-    "contract_name": "MaliciousToken",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.18",
-            "keccak256": "0x91d9300198fcb37383f39ae62bafd5a92b6def37f673c23b8ec37caca5bf9c69",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_spender",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "approve",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "totalSupply",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_from",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transferFrom",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_owner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "balanceOf",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transfer",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_owner",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_spender",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "allowance",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "_from",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Transfer",
-                    "type": "event"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "_owner",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "_spender",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Approval",
-                    "type": "event"
-                }
-            ],
-            "unlinked_binary":
-                "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",
-            "updated_at": 1518645860698
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/MultiSigWallet.json b/packages/contracts/src/artifacts/MultiSigWallet.json
deleted file mode 100644
index b6524e8b4..000000000
--- a/packages/contracts/src/artifacts/MultiSigWallet.json
+++ /dev/null
@@ -1,523 +0,0 @@
-{
-    "contract_name": "MultiSigWallet",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.10",
-            "keccak256": "0xccb0952f9f74bdedc4c6aa09bdad61b3f2c0b66a3aeae0be209c74472b62e9c6",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "owners",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "owner",
-                            "type": "address"
-                        }
-                    ],
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-            "updated_at": 1518648330317
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/MultiSigWalletWithTimeLock.json b/packages/contracts/src/artifacts/MultiSigWalletWithTimeLock.json
deleted file mode 100644
index c340ec1f1..000000000
--- a/packages/contracts/src/artifacts/MultiSigWalletWithTimeLock.json
+++ /dev/null
@@ -1,600 +0,0 @@
-{
-    "contract_name": "MultiSigWalletWithTimeLock",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.10",
-            "keccak256": "0x73f2aeb4c300248f7c2c851b085e41525007202decc34831880688f1aee6e126",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "owners",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "owner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "removeOwner",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "transactionId",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "revokeConfirmation",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "isOwner",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        },
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "confirmations",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "secondsTimeLocked",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "pending",
-                            "type": "bool"
-                        },
-                        {
-                            "name": "executed",
-                            "type": "bool"
-                        }
-                    ],
-                    "name": "getTransactionCount",
-                    "outputs": [
-                        {
-                            "name": "count",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "owner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "addOwner",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "transactionId",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "isConfirmed",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
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-            "updated_at": 1518645841445
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json b/packages/contracts/src/artifacts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json
deleted file mode 100644
index 015efc95c..000000000
--- a/packages/contracts/src/artifacts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json
+++ /dev/null
@@ -1,648 +0,0 @@
-{
-    "contract_name": "MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.10",
-            "keccak256": "0xda08395db72af1130287a88849e0cf0c895eb7c98e41483df3a4d457ca832910",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "owners",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "owner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "removeOwner",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "transactionId",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "revokeConfirmation",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "isOwner",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        },
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "confirmations",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "secondsTimeLocked",
-                    "outputs": [
-                        {
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-            "updated_at": 1518645843673
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/Token.json b/packages/contracts/src/artifacts/Token.json
deleted file mode 100644
index d31ca60ba..000000000
--- a/packages/contracts/src/artifacts/Token.json
+++ /dev/null
@@ -1,174 +0,0 @@
-{
-    "contract_name": "Token",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.18",
-            "keccak256": "0xe43382be55ddb9c7a28567b4cc59e35072da198e6c49a90ff1396aa8399fd61e",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_spender",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "approve",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_from",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transferFrom",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_owner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "balanceOf",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transfer",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_owner",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_spender",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "allowance",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "_from",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Transfer",
-                    "type": "event"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "_owner",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "_spender",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Approval",
-                    "type": "event"
-                }
-            ],
-            "unlinked_binary":
-                "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",
-            "updated_at": 1518645860796
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/TokenRegistry.json b/packages/contracts/src/artifacts/TokenRegistry.json
deleted file mode 100644
index 1bf5b53d0..000000000
--- a/packages/contracts/src/artifacts/TokenRegistry.json
+++ /dev/null
@@ -1,540 +0,0 @@
-{
-    "contract_name": "TokenRegistry",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.11",
-            "keccak256": "0xfaf2e3107cfafb9925c2ce51653c3f636bffff9e6528cc61c6341a3e27ca3c6b",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_token",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_index",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "removeToken",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_name",
-                            "type": "string"
-                        }
-                    ],
-                    "name": "getTokenAddressByName",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_symbol",
-                            "type": "string"
-                        }
-                    ],
-                    "name": "getTokenAddressBySymbol",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_token",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_swarmHash",
-                            "type": "bytes"
-                        }
-                    ],
-                    "name": "setTokenSwarmHash",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_token",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "getTokenMetaData",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        },
-                        {
-                            "name": "",
-                            "type": "string"
-                        },
-                        {
-                            "name": "",
-                            "type": "string"
-                        },
-                        {
-                            "name": "",
-                            "type": "uint8"
-                        },
-                        {
-                            "name": "",
-                            "type": "bytes"
-                        },
-                        {
-                            "name": "",
-                            "type": "bytes"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "owner",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_token",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_name",
-                            "type": "string"
-                        },
-                        {
-                            "name": "_symbol",
-                            "type": "string"
-                        },
-                        {
-                            "name": "_decimals",
-                            "type": "uint8"
-                        },
-                        {
-                            "name": "_ipfsHash",
-                            "type": "bytes"
-                        },
-                        {
-                            "name": "_swarmHash",
-                            "type": "bytes"
-                        }
-                    ],
-                    "name": "addToken",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_token",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_name",
-                            "type": "string"
-                        }
-                    ],
-                    "name": "setTokenName",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
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-            "updated_at": 1518645854885
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/TokenTransferProxy.json b/packages/contracts/src/artifacts/TokenTransferProxy.json
deleted file mode 100644
index 23770df01..000000000
--- a/packages/contracts/src/artifacts/TokenTransferProxy.json
+++ /dev/null
@@ -1,180 +0,0 @@
-{
-    "contract_name": "TokenTransferProxy",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.11",
-            "keccak256": "0xf376b57d58b01cb4e9c70a03a1ab6b06bc61d7eb4714bc360dd063c08028453a",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "token",
-                            "type": "address"
-                        },
-                        {
-                            "name": "from",
-                            "type": "address"
-                        },
-                        {
-                            "name": "to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transferFrom",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "target",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "addAuthorizedAddress",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "authorities",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "target",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "removeAuthorizedAddress",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "owner",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "authorized",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "getAuthorizedAddresses",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "address[]"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "newOwner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "transferOwnership",
-                    "outputs": [],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "target",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "caller",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "LogAuthorizedAddressAdded",
-                    "type": "event"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "target",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "caller",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "LogAuthorizedAddressRemoved",
-                    "type": "event"
-                }
-            ],
-            "unlinked_binary":
-                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-            "updated_at": 1518645855247
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/WETH9.json b/packages/contracts/src/artifacts/WETH9.json
deleted file mode 100644
index ead5f644b..000000000
--- a/packages/contracts/src/artifacts/WETH9.json
+++ /dev/null
@@ -1,292 +0,0 @@
-{
-    "contract_name": "WETH9",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.18",
-            "keccak256": "0xce985174db1a24d312c0d544abb926a9b107bd9abd6424288a8e54a16d3e006b",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "name",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "string"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "guy",
-                            "type": "address"
-                        },
-                        {
-                            "name": "wad",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "approve",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "totalSupply",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "src",
-                            "type": "address"
-                        },
-                        {
-                            "name": "dst",
-                            "type": "address"
-                        },
-                        {
-                            "name": "wad",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transferFrom",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "wad",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "withdraw",
-                    "outputs": [],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "decimals",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint8"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "balanceOf",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "symbol",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "string"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "dst",
-                            "type": "address"
-                        },
-                        {
-                            "name": "wad",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transfer",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "nonpayable",
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [],
-                    "name": "deposit",
-                    "outputs": [],
-                    "payable": true,
-                    "stateMutability": "payable",
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "",
-                            "type": "address"
-                        },
-                        {
-                            "name": "",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "allowance",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "stateMutability": "view",
-                    "type": "function"
-                },
-                {
-                    "payable": true,
-                    "stateMutability": "payable",
-                    "type": "fallback"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "src",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "guy",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "wad",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Approval",
-                    "type": "event"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "src",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "dst",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "wad",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Transfer",
-                    "type": "event"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "dst",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "wad",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Deposit",
-                    "type": "event"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "src",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "wad",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Withdrawal",
-                    "type": "event"
-                }
-            ],
-            "unlinked_binary":
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-            "updated_at": 1518645861261
-        }
-    }
-}
diff --git a/packages/contracts/src/artifacts/ZRXToken.json b/packages/contracts/src/artifacts/ZRXToken.json
deleted file mode 100644
index 0c353bc7e..000000000
--- a/packages/contracts/src/artifacts/ZRXToken.json
+++ /dev/null
@@ -1,226 +0,0 @@
-{
-    "contract_name": "ZRXToken",
-    "networks": {
-        "50": {
-            "solc_version": "0.4.11",
-            "keccak256": "0x68278a8290a59fb66c378f7517c1029efe226d916e252deceb0a2799a6bc4e77",
-            "optimizer_enabled": 0,
-            "abi": [
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "name",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "string"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_spender",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "approve",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "totalSupply",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_from",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transferFrom",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "decimals",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint8"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_owner",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "balanceOf",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [],
-                    "name": "symbol",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "string"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": false,
-                    "inputs": [
-                        {
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "transfer",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "bool"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "constant": true,
-                    "inputs": [
-                        {
-                            "name": "_owner",
-                            "type": "address"
-                        },
-                        {
-                            "name": "_spender",
-                            "type": "address"
-                        }
-                    ],
-                    "name": "allowance",
-                    "outputs": [
-                        {
-                            "name": "",
-                            "type": "uint256"
-                        }
-                    ],
-                    "payable": false,
-                    "type": "function"
-                },
-                {
-                    "inputs": [],
-                    "payable": false,
-                    "type": "constructor"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "_from",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "_to",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Transfer",
-                    "type": "event"
-                },
-                {
-                    "anonymous": false,
-                    "inputs": [
-                        {
-                            "indexed": true,
-                            "name": "_owner",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": true,
-                            "name": "_spender",
-                            "type": "address"
-                        },
-                        {
-                            "indexed": false,
-                            "name": "_value",
-                            "type": "uint256"
-                        }
-                    ],
-                    "name": "Approval",
-                    "type": "event"
-                }
-            ],
-            "unlinked_binary":
-                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-            "updated_at": 1518645862088
-        }
-    }
-}